Delta Embedded DVR User Manual download pdf (Page 148)

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z DVR color or brightness setup is not correct.

6. Can not search local records.

There are following possibilities:

z HDD ribbon is damaged.

z HDD is broken.

z Upgraded program is not compatible.

z The recorded file has been overwritten.

z Record function has been disabled.

7. Video is distorted when searching local records.

There are following possibilities:

z Video quality setup is too low.

z Program read error, bit data is too small. There is mosaic in the full screen. Please

restart the DVR to solve this problem.

z HDD data ribbon error.

z HDD malfunction.

z DVR hardware malfunctions.

8. There is no audio when monitor.

There are following possibilities:

z It is not a power picker.

z It is not a power acoustics.

z Audio cable is damaged.

z DVR hardware malfunctions.

9. There is audio when monitor but there is no audio when system playback.

There are following possibilities:

z Setup is not correct. Please enable audio function

z Corresponding channel has no video input. Playback is not continuous when the screen

is blue.

10. Time display is not correct.

There are following possibilities:

z Setup is not correct

z Battery contact is not correct or voltage is too low.

z Crystal is broken.

11. DVR can not control PTZ.

There are following possibilities:

z Front panel PTZ error

z PTZ decoder setup, connection or installation is not correct.

z Cable connection is not correct.

z PTZ setup is not correct.

z PTZ decoder and DVR protocol is not compatible.

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Delta Embedded DVR User Manual Page 148